[Tournament Finals] Which idol is the best singer?

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Apparently, Jackie Chan isn't targeting the Korean market just through his new movie!
His Korean management label Jackie Chan Korea revealed that they're preparing an idol group named 'Double JC' and they will debut in May or June. All members of the group are Korean, and have been trainees for about 8 years. Their debut album is produced by old school hip hop artist Hyun Jin Young, who was trained under Lee Soo Man and happens to be the v